Typescript: Serialize interface types to array of classes

Question

I have problem with typescript typings.

Currently, I am working on small game engine, which uses entity-component-system model. I want to "serialize" types of interface into the array of classes (a types of each interface property) to inform system about needed components.

What I want to achieve ideally:

export interface IMovable {
    position: CompPosition;
    velocity: CompVelocity;
}

export class MoveSystem extends System<IMovable> {

    // This array should have type, to ensure all components classes from IMovable are listed.
    protected requiredComponents = [ CompPosition, CompVelocity ];

    /// ...

}

What I want to do at least:

export interface IMovable {
    position: CompPosition;
    velocity: CompVelocity;
}

export class MoveSystem extends System<IMovable> {

    /* The properties of requiredComponents have the same name as in interface, but their types are 
       different - in interface, the type requires instances (which I want to keep this way in the 
       interface), but requiredComponents should contain classes. */
    protected requiredComponents = {
        position: CompPosition, 
        velocity: CompVelocity 
    };

    /// ...

}

Thanks for every suggestion.

Answer 1

I finally found solution. Not the best one possible, but it works the way it should:

type Class<T> = new(...args: any[]) => T;

type ComponentStore<T> = { [P in keyof T]: Component };
type RequiredComponents<T extends ComponentStore<T>> = { [P in keyof T]: Class<T[P]> };

abstract class System<T extends ComponentStore<T>> {

    protected abstract requiredComponents: RequiredComponents<T>;

    // ...

}

interface IMovable {
    position: CompPosition;
    velocity: CompVelocity;
}

class MoveSystem extends System<IMovable> {

    protected requiredComponents = {
        position: CompPosition,
        velocity: CompVelocity
    };

    // ...

}

But thanks everyone, who tried or even read it.